Bought a used E-FLITE S 15E Apprentice and Spektrum DX5E radio. Preflight revealed both aileron servos travel together. Either Flaps or Air-Brakes but no turning. Right servo (from behind) appears to be the Gray Original servo, but the left one has been replaced with one that has white+red+black wires (Futaba?) Both are hooked up to a single channel with a "Y" harness. One servo is mounted on its Left-Side, the other mounted on its Right-Side. Looks like this should work causing ailerons to work normally. Are Futaba servos wired to run "Left Handed"? Anyway I cannot find replacement servos anywhere. Does anyone understand ***, or where I can buy servos for the Apprentice? HELP. . . .